Tube case



FIG. 1 is a perspective view of the tube case design (with four hardwareitems shown dashed since they do not form a part of the design, and inFIG. 2 also),

FIG. 2 is a top plan view thereof,

FIG. 3 is a bottom plan view thereof,

FIG. 4 is a side view thereof,

FIG. 5 is an opposite side view thereof,

FIG. 6 is a front view thereof; and,

FIG. 7 is a rear view.

The ornamental design for a tube case, substantially as shown anddescribed.